1  /* { dg-shouldfail "tsan" } */
       2  /* { dg-additional-options "-ldl" } */
       3  
       4  #include <pthread.h>
       5  #include "tsan_barrier.h"
       6  
       7  static pthread_barrier_t barrier;
       8  pthread_barrier_t B;
       9  int Global;
      10  
      11  void *Thread1(void *x) {
      12    pthread_barrier_init(&B, 0, 2);
      13    barrier_wait(&barrier);
      14    pthread_barrier_wait(&B);
      15    return NULL;
      16  }
      17  
      18  void *Thread2(void *x) {
      19    barrier_wait(&barrier);
      20    pthread_barrier_wait(&B);
      21    return NULL;
      22  }
      23  
      24  int main() {
      25    barrier_init(&barrier, 2);
      26    pthread_t t;
      27    pthread_create(&t, NULL, Thread1, NULL);
      28    Thread2(0);
      29    pthread_join(t, NULL);
      30    pthread_barrier_destroy(&B);
      31    return 0;
      32  }
      33  
      34  /* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */